CN209429121U - A kind of part pipe seam formula end expansion type energy-absorption anchor rod - Google Patents
A kind of part pipe seam formula end expansion type energy-absorption anchor rod Download PDFInfo
- Publication number
- CN209429121U CN209429121U CN201822147058.5U CN201822147058U CN209429121U CN 209429121 U CN209429121 U CN 209429121U CN 201822147058 U CN201822147058 U CN 201822147058U CN 209429121 U CN209429121 U CN 209429121U
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- China
- Prior art keywords
- anchor rod
- pipe
- rod body
- seam formula
- anchor
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Abstract
The utility model discloses a kind of local pipe seam formula end expansion type energy-absorption anchor rods, pipe seam formula steel pipe in the utility model anchor pole is made of the coarse-pitch thread steel plate of high-strength heavy wall, it cracks longitudinal direction, both ends are slightly in cone-shaped, after the completion of anchor rod body positioning, steel pipe is squeezed into the slightly smaller than hole of its outer diameter using short drill steel, is located at the positioning pipe sleeve on the body of rod.Material is thus formed the precommpression to the soil body, are also formed initial supporting force, and this point meaning in the deep foundation pit support of stage excavation is very big, while under the action of confining pressure power, and the withdrawal resistance that frictional force provides is also very big.And this partial frictional power and default energy in the spring will further play energy-absorbing effect when anchor rod ultimate works.
Description
Technical field
The utility model belongs to suspension roof support field, and in particular to a kind of part pipe seam formula end expansion type energy-absorption anchor rod.
Background technique
Traditional pipe-seam type anchor rod acts on the confining pressure power of rock stratum around using it, and making body of rod overall length all has biggish rub
Power is wiped, while can provide supporting force after installing, it is wide that anchoring effect stablizes applicability.But there is also many for the body of rod of overall length simultaneously
Problem is such as destroyed and often appears in aperture weakness, and squeezing, which often occurs, in the rock stratum between two anchor poles to fall off, and crack can not enrich and expose
Air antiseptic property is poor.
Traditional pipe-seam type anchor rod is studied through forefathers, can significantly improve anchor force in such a way that bottom expands anchor head,
However due to its above-mentioned some defect, it can not be played well and is stablized, the characteristics of large pulling resistance.
The energy-absorption anchor rod of surrender formula has very high development and application prospect, and pipe-seam type anchor rod passes through itself and surrounding compression
The friction of the soil body-sliding dynamics balance can have certain energy-absorbing effect.So can realize stabilization by designing novel anchor rod
Big stress allowed with energy-absorbing pressure advantage in conjunction with.
Some new designs in recent years are mostly solely conceived to the anchor force for improving the soil body, from the shape and slurry of the body of rod
The material of body sets about studying, and there is no consider to set about designing from the angle for optimizing structure tension performance too much.Therefore it is using
On have certain limitation.
Utility model content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of local pipe seam formula end expansion type energy-absorption anchor rods, originally
Utility model is capable of providing stable large pulling resistance, makes that structure is reasonable, and energy-absorbing effect is obvious.
In order to achieve the above object, the utility model includes anchor rod body, and anchor rod body is hollow tube, is opened on anchor rod body
Equipped with several injected holes, anchor rod body bottom is provided with anchor head, and several hangnail fashioned iron are provided on the axial plane of anchor rod body bottom
Muscle manomelia is arranged with locating sleeve on anchor rod body, pipe seam formula steel pipe is provided on locating sleeve, pipe seam formula steel pipe is set in
On anchor rod body, it is provided with spring in pipe seam formula steel pipe, the bottom connecting positioning sleeve pipe of spring is fixed on anchor pole at the top of spring
On the outer wall of the body of rod, locating sleeve can slide up and down on anchor rod body, and Grouting Pipe is provided in anchor rod body, Grouting Pipe
Top, which has, only starches hole, and bottom is connect with injected hole, and pressure-bearing baffle, pressure-bearing baffle and pipe seam formula are provided at the top of anchor rod body
Duroplasts casing is arranged with outside anchor rod body between steel pipe；
The longitudinal direction of pipe seam formula steel pipe is cracked, and both ends are in cone-shaped.
Backing plate is provided at the top of pressure-bearing baffle, backing plate is connect by bolt with anchor rod body.
Locating sleeve is reverse frustoconic.
Anchor head is greater than the diameter of anchor rod body.
Hangnail steel bar manomelia is 6-8 root.
Compared with prior art, the pipe seam formula steel pipe in the utility model anchor pole uses the coarse-pitch thread steel plate system of high-strength heavy wall
At, longitudinally crack, both ends be slightly in it is cone-shaped, after anchor rod body positioning after the completion of, using short drill steel by steel pipe squeeze into slightly smaller than its
In the hole of outer diameter, it is located at the locating sleeve on the body of rod.Material is thus formed the precommpression to the soil body, are also formed initial
Supporting force, this point meaning in the deep foundation pit support of stage excavation is very big, while under the action of confining pressure power, frictional force is mentioned
The withdrawal resistance of confession is also very big.Friction-sliding dynamics that the present apparatus makes full use of local pipe seam anchor bar and surrounding to compress the soil body balance,
It is provided with energy-absorbing spring on anchor rod body and abutment sleeve, and applies a prestressing force effect, so that final lower section is starched
Body is acted on by precompression, and the frictional force that tube body is inside by surrounding soil, that is, effectively increases withdrawal resistance.Middle section pipe seam
The carrying of formula steel pipe, the system that both ends slurry cooperates can be segmented the pressure for increasing rock mass to anchor pole from loading angle to increase
Add anchor force.And the sliding for the body of rod, the carrying of tube body have good stable guarantee effect.
Further, the locating sleeve of the utility model is reverse frustoconic, can according to rock mass characteristic, design requirement etc. into
The adjustment of row upper and lower position.The extruding that this design can efficiently solve rock stratum between traditional pipe-seam type anchor rod falls off problem.Positioning sleeve
Pipe is interior frictional connection with the body of rod rather than is mechanically fixed, in order to apply first time prestressing force and the stress during use be avoided to concentrate
Problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the anchor rod body of the utility model；
Fig. 3 is the schematic diagram of pipe seam formula steel pipe and locating sleeve in the utility model；
Fig. 4 is the top view of pipe seam formula steel pipe and anchor rod body cooperation with seam in the utility model；
Fig. 5 is the cooperation schematic diagram of pipe seam formula steel pipe and locating sleeve cooperation in the utility model；
Fig. 6 is the schematic diagram of spring in the utility model；
Fig. 7 is the schematic diagram of anchor head in the utility model；
Wherein, 1- anchor rod body, 2- pipe seam formula steel pipe, 3- anchor head, 4- hangnail steel bar manomelia, 5- locating sleeve, 6- inhale
Energy spring, 7- Grouting Pipe, 8- injected hole, 9-, which stops, starches hole, 10- pressure-bearing baffle, 11- gasket, 12- bolt, 13- duroplasts casing,
14- reaming cavity.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 6 and Fig. 7, the utility model includes anchor rod body 1, and anchor rod body 1 is hollow tube, anchor pole bar
Several injected holes 8 are offered on body 1,1 bottom of anchor rod body is provided with anchor head 3, and anchor head 3 is greater than the diameter of anchor rod body 1, anchor pole
It is provided with several hangnail steel bar manomelias 4 on the axial plane of 1 bottom of the body of rod, is arranged with locating sleeve 5 on anchor rod body 1, positions
Pipe seam formula steel pipe 2 is provided on casing 5, pipe seam formula steel pipe 2 is set on anchor rod body 1, is provided with spring in pipe seam formula steel pipe 2
6, the bottom connecting positioning sleeve pipe 5 of spring 6, the top of spring 6 is fixed on the outer wall of anchor rod body 1, and locating sleeve 5 can be
Slided up and down on anchor rod body 1, be provided with Grouting Pipe 7 in anchor rod body 1, the top of Grouting Pipe 7 has an only slurry hole 9, bottom with
Injected hole 8 connects, and the top of anchor rod body 1 is provided with pressure-bearing baffle 10, the anchor pole bar between pressure-bearing baffle 10 and pipe seam formula steel pipe 2
Duroplasts casing 13 is arranged with outside body 1, the top of pressure-bearing baffle 10 is provided with backing plate 11, and backing plate 11 passes through bolt 12 and anchor pole bar
Body 1 connects；
Referring to Fig. 3, Fig. 4 and Fig. 5, the longitudinal direction of pipe seam formula steel pipe 2 is cracked, and both ends are slightly cone-shaped, and locating sleeve 5 is inverted round stage
Shape.
Preferably, hangnail steel bar manomelia 4 is 6-8 root.
The construction method of the utility model, comprising the following steps:
Step 1 cleans out side slope or country rock outer surface, is drilled by design requirement in corresponding position with drilling machine, anchor
The aperture ratio pipe seam formula post small 2-5mm of outer diameter in hole, will ask the rock stratum ﹑ soil property situation and drilling depth according to meter is set, use explosive
End reaming is carried out with detonator, forms reaming cavity 14, the native disintegrating slag of fragmentary debris and product in cleaning hole completes prefabricated anchor hole；
Anchor rod body is inserted into anchor hole, and pipe seam formula steel pipe is squeezed into hole by step 2, is fixed on prefabricated position；
Step 3 lifts upwards, makes spring elongation to predeterminated position, carries out anchoring temporarily；
Step 4 carries out grouting under pressure to anchor rod body lower section using Grouting Pipe, until slurry is preferably used early full of only slurry hole
Strong type cement mortar, and conserve to desired strength；
Step 5 releases anchoring temporarily, carries out slip casting to anchor rod body upper section, until slurry is full of anchor rod body, and supports
It protects to desired strength；
Pressure-bearing baffle by bolt is fixed on earth's surface after applying prestressing force by step 6, the stretching anchor rod body of rod；
Step 7 protects exposed parts whitewashing or brush film.
Anchor pole disclosed by the utility model is a kind of local pipe seam formula, both ends slip casting anchoring, the anchor pole of three sections of collaborative works.
The anchor pole is able to solve some problems existing for itself while inheriting tradition pipe-seam type anchor rod advantage, and has
Stable large pulling resistance and outstanding energy-absorbing effect.It includes anchor rod body, three parts of pipe seam formula steel pipe and both ends injecting cement paste.
Claims (5)
1. a kind of part pipe seam formula end expansion type energy-absorption anchor rod, which is characterized in that including anchor rod body (1), during anchor rod body (1) is
Blank pipe offers several injected holes (8) on anchor rod body (1), and anchor rod body (1) bottom is provided with anchor head (3), anchor rod body
(1) it is provided with several hangnail steel bar manomelias (4) on the axial plane of bottom, is arranged with locating sleeve (5) on anchor rod body (1),
Pipe seam formula steel pipe (2) is provided on locating sleeve (5), pipe seam formula steel pipe (2) is set on anchor rod body (1), pipe seam formula steel pipe
(2) it is provided with spring (6) in, the bottom connecting positioning sleeve pipe (5) of spring (6), spring is fixed on anchor rod body at the top of (6)
(1) on outer wall, locating sleeve (5) can slide up and down on anchor rod body (1), be provided with Grouting Pipe in anchor rod body (1)
(7), the top of Grouting Pipe (7), which has, only starches hole (9), and bottom is connect with injected hole (8), and anchor rod body is provided at the top of (1)
Pressure-bearing baffle (10), the anchor rod body (1) between pressure-bearing baffle (10) and pipe seam formula steel pipe (2) are arranged with duroplasts casing outside
(13)；
The longitudinal direction of pipe seam formula steel pipe (2) is cracked, and both ends are in cone-shaped.
2. a kind of local pipe seam formula end expansion type energy-absorption anchor rod according to claim 1, which is characterized in that pressure-bearing baffle (10)
Top be provided with backing plate (11), backing plate (11) is connect by bolt (12) with anchor rod body (1).
3. a kind of local pipe seam formula end expansion type energy-absorption anchor rod according to claim 1, which is characterized in that locating sleeve (5)
For reverse frustoconic.
4. a kind of local pipe seam formula end expansion type energy-absorption anchor rod according to claim 1, which is characterized in that anchor head (3) is greater than
The diameter of anchor rod body (1).
5. a kind of local pipe seam formula end expansion type energy-absorption anchor rod according to claim 1, which is characterized in that hangnail steel bar is short
Limb (4) is 6-8 root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147058.5U CN209429121U (en) | 2018-12-20 | 2018-12-20 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147058.5U CN209429121U (en) | 2018-12-20 | 2018-12-20 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209429121U true CN209429121U (en) | 2019-09-24 |
Family
ID=67972583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822147058.5U Expired - Fee Related CN209429121U (en) | 2018-12-20 | 2018-12-20 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209429121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469055A (en) * | 2018-12-20 | 2019-03-15 | 长安大学 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod and its construction method |
-
2018
- 2018-12-20 CN CN201822147058.5U patent/CN209429121U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469055A (en) * | 2018-12-20 | 2019-03-15 | 长安大学 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod and its construction method |
| CN109469055B (en) * | 2018-12-20 | 2023-09-19 | 长安大学 | Local pipe seam type end expansion energy-absorbing anchor rod and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20201220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |